| Title | Misleading lateralization by ictal SPECT in temporal lobe epilepsy-- a case report. | | Author(s) | Janszky J, Holló A, Barsi P, Rásonyi G, Erõss L, Kalóczkai A, Halász P | | Institution | Epilepsy Center, National Institute of Psychiatry and Neurology, Budapest, Hungary. janszky@opni.hu | | Source | Epileptic Disord 2002 Jun; 4(2):159-62. | | MeSH | Adult
Electroencephalography
Epilepsy, Temporal Lobe
Female
Humans
Laterality
Magnetic Resonance Imaging
Temporal Lobe
Tomography, Emission-Computed, Single-Photon
| | Abstract | A 28-year-old woman with temporal lobe epilepsy underwent presurgical evaluation. Scalp-EEG showed non-localizing seizure patterns. MRI revealed a right hippocampal sclerosis. Ictal HMPAO-SPECT showed a marked left temporal hyperperfusion. Video-EEG monitoring with foramen ovale electrodes (FOE) showed an initial seizure pattern which appeared in the right FOE and which shifted to the left 8 s after clinical onset. Three years after a right temporal lobectomy, the patient is seizure-free. In conclusion, although the ictal SPECT suggested a left temporal seizure focus, the intracranial EEG and the postoperative seizure-freedom confirmed the right-sidelocation of the epileptogenic region. A rapid right-left seizure spread explains the mechanism of falsely lateralizing ictal SPECT. | | Language | eng | | Pub Type(s) | Case Reports
Journal Article
| | PubMed ID | 12105078 |
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